package oop.part10.exer3;
/**
 * 定义一个Circle类，声明radius属性，提供getter和setter方法
 */
public class Circle {

  private Double radius;

  public Double getRadius() {
    return radius;
  }

  public void setRadius(Double radius) {
    this.radius = radius;
  }

  public Circle() {
    super();
  }

  public Circle(Double radius) {
    super();
    this.radius = radius;
	}
	
	
}
